1959 French film directed by Julien Duvivier

Four women were murdered, each was knifed and, though they had their clothes torn, they weren't molested. As the famed police inspector Jules Maigret pieces the clues together, he comes to realize that for the elusive man that he suspects to be unmasked, he has to set him a trap.

A gangster escapes jail and quickly makes plans to continue his criminal ways elsewhere, but a determined inspector is closing in.